Menu

mod

Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL)Minecraft mod for 1.21

The standard libraries of the Quilt ecosystem. Essential for your modding experience on Quilt!

newest supported 1.21Library
Latest version
7.7.0+0.92.2-1.20.1
Minecraft
1.18.2 to 1.21
Java
Java 21+
Loader
Quilt
Licence
Apache-2.0
Downloads
1.7M
Updated
21 mo ago
Available on
Modrinth
Space NodePartner

Host Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL) servers

One click and Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL) is installed with the right loader, on hardware built for it.

  • 1.21
  • Quilt
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL) declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21Quilt21+declared13 Jun 2024
1.20.6Quilt21+declared29 Apr 2024
1.20.4Quilt17+declared7 Dec 2023
1.20.2Quilt17+declared20 Sept 2023
1.20.1Quilt17+declared12 Jun 2023
1.20Quilt17+declared2 Jun 2023
1.20-rc1Quilt17+declared31 May 2023
1.20-pre7Quilt17+declared29 May 2023
1.20-pre6Quilt17+declared25 May 2023
1.20-pre5Quilt17+declared23 May 2023
1.19.4Quilt17+declared14 Mar 2023
1.19.4-rc2Quilt17+declared10 Mar 2023
1.19.4-pre3Quilt17+declared1 Mar 2023
1.19.3Quilt17+declared7 Dec 2022
1.19.3-rc1Quilt17+declared1 Dec 2022
22w43aQuilt17+declared26 Oct 2022
1.19.2Quilt17+declared5 Aug 2022
1.19.1Quilt17+declared27 Jul 2022
1.19.1-rc2Quilt17+declared21 Jul 2022
1.19.1-pre6Quilt17+declared20 Jul 2022
1.19.1-pre4Quilt17+declared8 Jul 2022
1.19.1-pre2Quilt17+declared30 Jun 2022
1.19.1-rc1Quilt17+declared23 Jun 2022
1.19.1-pre1Quilt17+declared21 Jun 2022
22w24aQuilt17+declared15 Jun 2022
1.19Quilt17+declared7 Jun 2022
1.18.2Quilt17+declared28 Feb 2022

Download

From Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL)’s own host. Nothing is re-hosted here.

All 60 releases
7.7.0+0.92.2-1.20.1release2 Dec 2024

qfapi-7.7.0_qsl-6.3.0_fapi-0.92.2_mc-1.20.1.jar · 2.6 MB · for 1.20.1

Download latest
d7bb384b9610…
Older versions24
  • 11.0.0-alpha.3+0.102.0-1.2112 Aug 20241.212.0 MB69.4k downloadsb71e9428001e…Get
  • 11.0.0-alpha.3+0.100.7-1.2114 Jul 20241.212.0 MB13.2k downloadsd5788b50cdf7…Get
  • 7.6.0+0.92.2-1.20.110 Jul 20241.20.12.6 MB48.5k downloads9cb907b94648…Get
  • 11.0.0-alpha.2+0.100.4-1.218 Jul 20241.211.9 MB2.8k downloadsdb2f7d98e770…Get
  • 10.0.0-alpha.3+0.100.4-1.20.68 Jul 20241.20.62.0 MB8.1k downloads5b4386e7ed5b…Get
  • 11.0.0-alpha.1+0.100.4-1.214 Jul 20241.211.9 MB2.8k downloads8e0df85a34e0…Get
  • 10.0.0-alpha.2+0.100.4-1.20.63 Jul 20241.20.62.0 MB548 downloads2053bde6cfad…Get
  • 7.5.0+0.92.2-1.20.112 Jun 20241.20.12.6 MB15.0k downloadsddb15d26be60…Get
  • 9.0.0-alpha.8+0.97.0-1.20.422 Apr 20241.20.41.9 MB30.9k downloadsae742daae860…Get
  • 9.0.0-alpha.7+0.96.11-1.20.47 Apr 20241.20.41.9 MB5.5k downloads9551bc68b1b0…Get
  • 8.0.0-alpha.6+0.91.6-1.20.23 Apr 20241.20.21.8 MB18.5k downloadsb2fd28509913…Get
  • 9.0.0-alpha.6+0.96.11-1.20.43 Apr 20241.20.41.9 MB1.7k downloads205b116bede6…Get
  • 9.0.0-alpha.5+0.96.11-1.20.429 Mar 20241.20.41.9 MB3.1k downloads6320417feefd…Get
  • 8.0.0-alpha.5+0.91.6-1.20.224 Mar 20241.20.21.8 MB2.3k downloads64ab85385e1f…Get
  • 8.0.0-alpha.4+0.91.6-1.20.224 Feb 20241.20.21.8 MB5.1k downloadsee81176e5bb6…Get
  • 4.0.0-beta.30+0.77.0-1.19.219 Feb 20241.19.21.6 MB104.8k downloads05b0255ec818…Get
  • 7.5.0+0.91.0-1.20.11 Feb 20241.20.11.8 MB243.9k downloadsbe27b623b7e5…Get
  • 8.0.0-alpha.3+0.91.2-1.20.229 Jan 20241.20.21.8 MB4.1k downloads5d7f75242a00…Get
  • 8.0.0-alpha.2+0.91.2-1.20.228 Jan 20241.20.21.8 MB2.7k downloads9e8e71b23965…Get
  • 8.0.0-alpha.1+0.91.2-1.20.228 Jan 20241.20.21.8 MB519 downloads1dd198d11558…Get
  • 6.0.0-beta.11+0.87.0-1.19.422 Oct 20231.19.41.8 MB12.4k downloads803b437084b6…Get
  • 7.4.0+0.90.0-1.20.18 Oct 20231.20.11.8 MB146.6k downloads1943390d2785…Get
  • 6.0.0-beta.10+0.87.0-1.19.44 Oct 20231.19.41.8 MB859 downloadsbf2fd6785b1f…Get
  • 7.3.1+0.89.3-1.20.11 Oct 20231.20.11.8 MB7.1k downloadsbdf630e6170b…Get

Frequently asked

Does Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL) work on Minecraft 1.21?

Yes. 1.21 is the newest Minecraft version Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL) declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL) support?

Everything the author has declared, from 1.18.2 up to 1.21. The full list is in the table above, with the Java runtime each version needs next to it.

Which loader does Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL) need?

Quilt. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL)?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.

What licence is Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL) under?

Apache-2.0, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL)?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL) safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)Collective🎓 Collective is a shared library with common code for all of Serilum's mods.

Used by

2 projects list Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL) as a required dependency.

BankSystemBankSystem is a Minecraft mod that brings money in to the game. Players can have a bankacount that can not only hold money but items too.StockMarketStockMarket is a Minecraft mod that brings a better way for trading to the game. It enables players to trade items on a virtual stock market, making it ideal for multiplayer servers with active economies.

Last checked 2 mo ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .